Fifteen min after adding nimodipine 50 ?mol/L, the contractility of the left atrial muscle decreased from 100 % of control to 55.5 +4.2 o/o and its inhibitory effect was equal to the effect of verapamil (25 ?mol/L ) . Nim at the same concentration inhibited strongly the positive staircase phenomenon but could not reverse it into the negative staircase phenomenon as verapamil 25 ?mol/L did. The same concentration of Nim suppressed significantly the post rest contraction. On the contrary, the post rest contraction was not affected by verapamil at 25 ?mol/L. In addition, Nim 50 ?mol/L reversed or prevented significantly the ouabain-induced arrhythmias in isolated left atria. These results suggest that the negative ino-trbpism of Nim may be related not only to the inhibition of Ca2 + influx to the cells and also to the decrease of the intercellular Ca2+ release and that Nim might present the possibility in treating arrhythmias or other heart disease

Hospital TQM system is designed to fit China′s specifics,based on the Total Quality Management (TQM)theory and integrating the system theory concepts, comprising two structural modules of perceived quality and non-perceived quality.The former is a trinity framework made up of patient satisfaction,employee commitment and social reputation,while the latter is a management system featuring“Six pillars and six columns”,constituting a three-dimensional management for integrated operation and integration of the hospital.

Objectives To test a simple method for genotyping of C.trachomatis isolates and to investigate the clinical significance of the genotypes. Methods A part of the chlamydial genome encoding the major outer membrane protein(omp1) was amplified by polymerase chain reaction (PCR). The products were digested by endonucleases to see the characteristic patterns, after silver staining on 10% polyacrylamide gels. Results The omp1 genes of 15 serovars of C. trachomatis were amplified by PCR,which generated an 871 base pair gene fragment. AluⅠ digestion of the product gave characteristic patterns for the 15 serovars,but group C presented closely similar patterns. A triple digestion with HpaⅡ, followed by HinfⅠ and EcoRⅠ, would allow the differentiation of serovars in group C. Analysis of 74 clinical isolates revealed serovars E, F, D, G as the most prevalent genital serovars in the studied populations. Serovars B, H, J were occasionally identified. A mixed infection with serovars F and D was seen in a clinical sample. No significant relationship was observed between clinical manifestations of urogenital chlamydial infections and serovars,however,serovar D was more often associated with high titer of anti chlamydial antibody than other serovars. Conclusion The omp1 genotyping technique seems to be promising for epidemiological studies.

Hepatocelular carcinoma ( HCC) is one of the most common causes of cancer death worldwide. Although surgical resection offers a better curative option than nonsurgical treatments, it is not an option for the majority of patients with poor hepatic function or at an advanced stage when diagnosed.Transcatheter arterial chemoembolization (TACE) is an alternative and effective nonsurgical treatment for HCC. Evaluation of the effect of TACE is important to develop a best therapeutic strategy. From January 2009 to December 2010, 28 patients with HCC received TACE at the PLA General Hospital, and the results of magnetic resonance imaging ( MRI) were analyzed. Fifty-one lesions were detected and the maximum diameter of the lesions was 14.7 cm. Twenty-eight lesions in 16 patients which showed variable signal intensity on T1- and T2 -weighted images and iso- or hypointensity on diffusion-weighted image ( DWI) had no enhancement. Five lesions of 10 tumors in four patients had focal enhancement in the first MRI after TACE that displayed hyperintensity on DWI. Eight patients had been found with tumor recurrence or metastasis when they received MRI for the second time. The recurrent, residual and intrahepatic metastatic tumors enhanced rapidly at dynamic early phase scanning and demonstrated hyperintensity on T2 -weighted images.

Catharanthus roseus (L.) G. Don is a plant of the Catharanthus genus of Apocynaceae which has been reported to have therapeutic effects of detoxication and anticancer. In order to further study the alkaloid constituents of C. roseus, the aerial parts of the plant were extracted with 95% EtOH, and then treated with 2% H2SO4 and NH3H2O to obtain total alkaloids. The total alkaloids were separated and purified by column chromatography over silica gel and prepared by high performance liquid chromatography (HPLC). Their structures were elucidated on the basis of physicochemical properties and spectral data. A new alkaloid together with five known compounds were isolated and identified as vindolinine B (1), lochnericine (2), horhammericine (3), vindorosine (4), vindoline (5), and coronaridine (6). Compound 1 is a new compound and named as vindolinine B.

Objective To document the MRI features of renal angiomyolipoma (RAML) containing minimal fat and to explore whether the MR features vary depending on the tumor size. Methods The MR findings of 15 cases of pathologically-proved RAML containing minimal fat were reviewed retrospectively from January 2008 to March 2010. All patients underwent MR in a 1.5 T or 3.0 T scanners. The MR features of the lesions were analyzed, with emphasis on the signal intensity and homogeneity on T2WI, in regards to pseudocapsule, lipid component, hemorrhage, cystic degeneration or necrosis, blood vessels, interface with renal parenchyma and enhancement pattern. All lesions were categorized into 2 groups; those with diameter ＞4 cm and those with diameter ≤4 cm. The difference of imaging characteristics between these two groups was analyzed using Fisher exact test. Results All 15 lesions demonstrated hypointensity on T2WI compared to the renal parenchyma. Homogeneous signal intensity on T2WI was seen in 6 lesions (6/15); peritumoral pseudocapsule in 3 lesions (3/15); cystic degeneration or necrosis, hemorrhage in 5 lesions (5/15); flow void of blood vessels in 2 lesions (2/15); lipid component in 4 lesions (4/15); angular interface with renal parenchyma in 10 lesions (10/15); homogeneous enhancement in 8 lesions (8/15). Fifteen lesions were divided into two groups; 9 categorized into group 1 (the maximum diameter ≤ 4 cm) and 6 into group 2 ( the maximum diameter ＞ 4 cm). Cystic degeneration or necrosis was seen in 0 of 9 in group one and 5 of 6 in group two respectively, hemorrhage(0 of 9 and 5 of 6 respectively) and pseudocapsule(0 of 9 and 3 of 6 respectively. The difference between these findings in the two groups demonstrated statistical significance (P ＜ 0. 05). Conclusion The MR features of RAML containing miminal fat were hypointensity on T2 WI,angular interface with renal parenchyma and homogeneous contrast enhancement, however, these findings can vary depending on the tumor size.

Liver transplantation is the most effective treatment for end-stage liver diseases.To expand the donor source,the Ministry of Health (MOH) initiated a new national program called Donation of Citizen's Deceased (DCD) to address the need for organ transplantation in 2010.However,it has been proven that DCD liver transplantation has the poorer graft function in short-and long-term outcome compared to live donor liver transplantation.In order to improve the effect of DCD liver transplantation,the preconditioning of DCD liver,as an effective measure,is gaining more and more attention.This review summarizes the recent research progress on the application of preconditioning in DCD liver transplantation during perioperative period.

Objective To explore the correlations and status of self-management level and the quality of life of patients undergoing maintenance hemodialysis. Method The self-management behavior rating scale and World Health Organization Quality of Life-brief (WHOQOL-BREF) were used among 59 patients undergoing hemodialysis for the investigation. Results The score by WHOQOL-BREF was (40.56 ± 6.15) and that by the self-management behavior rating scale was (86.99 ± 16.41). The self-management level and the quality of life were positively correlated. Conclusion The measures including enhancing fluid intake, improving patient's compliance, encouraging them to actively participate in physical exercise and social activities can be done to improve their self-management and ultimately improve their quality of life.

Objective To study the clinical value of capsule endoscopy for small bowel diseases in pediatric and adolescent patients.Methods Clinical data of 61 pediatric and adolescent patients who underwent capsule endoscopy from February 2007 to April 2014 was respectively analyzed.The positive diagnostic results and safety were observed.Results Of 61 patients,the CE procedures were completed successfully in 58 patients,and failed in 3 patients because of the gastric stasis.Forty-one positive lesions were found in small intestine,and the detection rate was 70.69％.Positive findings included angiodysplasias,Crohn' s disease,Meckel diverticula,ulcer,P-J syndrome,protrusion lesion and enteritis,etc.Finally,29 patients were confirmed (50％),3 (5.17％) were misdiagnosed and 1 (1.72％) was missed.Twenty-two patients underwent other small bowel examinations besides the capsule endoscopy.And the accuracy of capsule endoscopy was 81.82％.All capsules were successfully swallowed by the patients and evacuated within two weeks.No complications such as capsule retention or intestinal obstruction occurred.Conclusion Capsule endoscopy is a safe and well tolerated procedure with high diagnostic rate,which has a prospective clinical value in small bowel diseases in pediatric and adolescent patients.

A new method has been established for simultaneous determination of anions and cations in fertilizer sample by multimodal liquid chromatography with direct conductivity detection. An Acclaim Trinity P1 column based on nanopolymer silica hybrid technology with multimodal separation functional groups reversed-phase/anion-exchange/cation-exchange was used for the analysis. The chromatographic conditions were optimized and the effect ion of eluent on retention was discussed. Eight ions ( Li+, NH+4 , K+, HCOO-, NO-2 , Cl-, NO-3 and Br-) were separated and determined simultaneously by using 25 mmol/L CH3 COONa solution containing 50% acetonitrile at pH=5. 0 as mobile phase. The flow rate was 0. 50 mL/min and the temperature was 30 ℃. Under the optimum conditions, the linear ranges of the method were in the range of 0 . 5-200 mg/L for all the ions with correlation coefficient of 0 . 9997-0 . 9999 . Whereas the detection limits (S/N=3) were in the range of 0. 16-1. 72 mg/L and the relative standard deviations (RSD, n=9) were in the range of 1 . 3-2 . 5%. The method was applied to the determination of anions and cations in the fertilizer samples with satisfied results and the recoveries were in the range of 95 . 8%-103 . 8%.